Home / 688,344.40-1,032,162.06-308,939.88

Finding the Fourth Proportional to 688,344.40, 1,032,162.06 and 308,939.88

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Solution

The fourth proportional to 688,344.40, 1,032,162.06 and 308,939.88 is: 463,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,344.40 : 1,032,162.06 = 308,939.88 : x
  2. Step 2: Convert to fraction form
    688,344.40/1,032,162.06 = 308,939.88/x
  3. Step 3: Cross multiply
    688,344.40x = 1,032,162.06 × 308,939.88
  4. Step 4: Simplify right side
    688,344.40x = 318,876,027,986.09
  5. Step 5: Solve for x
    x = 318,876,027,986.09/688,344.40
  6. Step 6: Final answer
    x = 463,250.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.